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SUMMARY:Attacking and Fixing the Bitcoin Network - Muoi Tran\, National Un
 iversity of Singapore
DTSTART:20220426T130000Z
DTEND:20220426T140000Z
UID:TALK168512@talks.cam.ac.uk
CONTACT:Kieron Ivy Turk
DESCRIPTION:Much existing research in the blockchain field has focused on 
 cryptographic primitives and improved distributed blockchain protocols. Th
 e network required to connect these distributed systems\, however\, has re
 ceived relatively little attention.\nYet\, there is increasing evidence th
 at the network can become the bottleneck and root cause for some of the mo
 st pressing challenges blockchains face today.\n\nIn this talk\, I will in
 troduce a few recent research projects from my group that focus on attacki
 ng and securing Bitcoin’s peer-to-peer networking protocol. I will begin
  with our novel Bitcoin partitioning attack\, dubbed Erebus\, that stealth
 ily isolates one or more Bitcoin peer nodes from the rest of the network. 
 Then\, I will discuss how we have collaborated with Bitcoin developers to 
 mitigate the Erebus attacks and present some remaining questions. Finally\
 , I will mention a few open problems in securing the networking layer of b
 lockchain in general.\n\nBIO:\nMuoi Tran is a Research Fellow at the Natio
 nal University of Singapore\, where he recently obtained a Ph.D. degree un
 der the guidance of Zhenkai Liang and Min Suk Kang (KAIST). His research i
 nterests broadly include network security\, blockchain security and privac
 y.\nHe was selected as one of the Microsoft Research Asia fellows in 2019\
 , a distinguished shadow reviewer at IEEE S&P 2021\, and an awardee of the
  Dean's Graduate Research Excellence Award at NUS in 2022.
LOCATION:Webinar - link on talks.cam page after 12 noon Tuesday
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